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// run-pass
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#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
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trait Specializable { type Output; }
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impl<T> Specializable for T {
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default type Output = u16;
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}
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fn main() {
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unsafe {
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std::mem::transmute::<u16, <() as Specializable>::Output>(0);
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}
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}
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